Home / 55,286.40-76,295.04-30,135.90

Finding the Fourth Proportional to 55,286.40, 76,295.04 and 30,135.90

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Solution

The fourth proportional to 55,286.40, 76,295.04 and 30,135.90 is: 41,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,286.40 : 76,295.04 = 30,135.90 : x
  2. Step 2: Convert to fraction form
    55,286.40/76,295.04 = 30,135.90/x
  3. Step 3: Cross multiply
    55,286.40x = 76,295.04 × 30,135.90
  4. Step 4: Simplify right side
    55,286.40x = 2,299,219,695.94
  5. Step 5: Solve for x
    x = 2,299,219,695.94/55,286.40
  6. Step 6: Final answer
    x = 41,587.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.